1.
    var input = readline();
    console.log(input.match(/[A-Z]/g)? input.match(/[A-Z]/g).length:0)

    2.
    var readline = require(“readline”);
    const rl = readline.createInterface({
    input:process.stdin,
    output:process.stdout,
    })
    rl.on(‘line’,(line)=>{
    console.log(line.match(/[A-Z]/g)? line.match(/[A-Z]/g).length:0)
    })

    3.
    var line=””;
    var all = ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’;
    while((line = readline())){
    const arr = line.split(“”);
    let n = 0;
    arr.forEach((item)=>{
    if(all.indexof(item)>-1){
    n++;
    }
    });
    console.log(n);
    }

    function upperCount(str){
    let res = str.split(‘’);
    let n = 0;
    res.filter((item)=>{
    if(item.charCodeAt()>=65 && item.charCodeAt<=90){
    n++
    }
    return n;
    })
    }

    while((str = readline())){
    console.log(upperCount(str));
    }